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# function zfdir {
# Long directory of remote server.
# The remote directory is cached. In fact, two caches are kept:
# one of the standard listing of the current directory, i.e. zfdir
# with no arguments, and another for everything else.
# To access the appropriate cache, just use zfdir with the same
# arguments as previously. zfdir -r will also re-use the `everything
# else' cache; you can always reuse the current directory cache just
# with zfdir on its own.
#
# The current directory cache is emptied when the directory changes;
# the other is kept until a new zfdir with a non-empty argument list.
# Both are removed when the connection is closed.
#
# zfdir -f will force the existing cache to be ignored, e.g. if you know
# or suspect the directory has changed.
# zfdir -d will remove both caches without listing anything.
# If you need to pass -r, -f or -d to the dir itself, use zfdir -- -d etc.;
# unrecognised options are passed through to dir, but zfdir options must
# appear first and unmixed with the others.
emulate -L zsh
setopt extendedglob
local file opt optlist redir i newargs force
local curdir=$zfconfig[curdir_$ZFTP_SESSION]
local otherdir=$zfconfig[otherdir_$ZFTP_SESSION]
while [[ $1 = -* ]]; do
if [[ $1 = - || $1 = -- ]]; then
shift;
break;
elif [[ $1 != -[rfd]## ]]; then
# pass options through to ls
break;
fi
optlist=${1#-}
for (( i = 1; i <= $#optlist; i++)); do
opt=$optlist[$i]
case $optlist[$i] in
r) redir=1
;;
f) force=1
;;
d) [[ -n $curdir && -f $curdir ]] && rm -f $curdir
[[ -n $otherdir && -f $otherdir ]] && rm -f $otherdir
zffcache -d
return 0
;;
esac
done
shift
done
zfautocheck -d || return 1
# directory hack, see zfcd
for (( i = 1; i <= $#argv; i++ )); do
if [[ $argv[$i] = $HOME || $argv[$i] = $HOME/* ]]; then
argv[$i]="~${argv[$i]#$HOME}"
fi
done
if [[ $# -eq 0 ]]; then
# Cache it in the current directory file. This means that repeated
# calls to zfdir with no arguments always use a cached file.
if [[ -z $curdir ]]; then
curdir=${TMPPREFIX}zfcurdir_${ZFTP_SESSION}_$$
zfconfig[curdir_$ZFTP_SESSION]=$curdir
fi
file=$curdir
else
# Last directly looked at was not the current one, or at least
# had non-standard arguments.
if [[ -z $otherdir ]]; then
otherdir=${TMPPREFIX}zfotherdir_${ZFTP_SESSION}_$$
zfconfig[otherdir_$ZFTP_SESSION]=$otherdir
fi
file=$otherdir
newargs="$*"
if [[ -f $file && $redir != 1 && $force -ne 1 ]]; then
# Don't use the cached file if the arguments changed.
[[ $newargs = $zfconfig[otherargs_$ZFTP_SESSION] ]] || rm -f $file
fi
zfconfig[otherargs_$ZFTP_SESSION]=$newargs
fi
if [[ $force -eq 1 ]]; then
rm -f $file
# if it looks like current directory has changed, better invalidate
# the filename cache, too.
(( $# == 0 )) && zffcache -d
fi
if [[ -n $file && -f $file ]]; then
eval ${PAGER:-more} \$file
else
if (zftp test); then
# Works OK in subshells
zftp dir $* | tee $file | eval ${PAGER-:more}
else
# Doesn't work in subshells (IRIX 6.2 --- why?)
zftp dir $* >$file
eval ${PAGER-:more} $file
fi
fi
# }
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